New answers tagged polyomino
16
votes
Accepted
8x8 grid with no unmarked L-pentomino
I think the answer is
cells. One way to achieve it is as follows:
There is a straightforward proof that this is the minimum possible.
Bonus for some other pentominoes:
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6
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1
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Is it possible to arrange the free n-minoes of orders 2, 3, 4 and 5 into a rectangle?
A simpler method to see that 4x22 is possible:
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7
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Is it possible to arrange the free n-minoes of orders 2, 3, 4 and 5 into a rectangle?
Here's a solution to the 4x22. It's made up of a 4x(2,3,4,6,7). 4x(1,2,3,4,5,7) and 4x(1,2,3,4,6,6) are both impossible.
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7
votes
Accepted
Is it possible to arrange the free n-minoes of orders 2, 3, 4 and 5 into a rectangle?
The answer is
Apologies for reusing OP's colour scheme. The big violet blob consists of the Z pentomino and the T tetris piece.
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